Air-conditioner with high-efficiency differential cold-valley pipes

ABSTRACT

An air-conditioner with high-efficiency differential cold-valley pipes, which include J pipes and a low-pressure circulating pump, has a first arc heat-exchanger which is formed by multiple-layer ladder-shaped corrugated plates and multiple-layer arc J pipe stacked alternatively, and a second arc heat-exchanger which is formed by multiple-layer arc J pipe and multiple-layer wave-shaped film-type evaporation face stacked alternatively. A low pressure pump is connected between the first arc heat-exchanger and the second arc heat-exchanger through pipelines. The air-conditioner solves the problems that the conventional air-conditioner consumes high energy, quality of the air in the room is low and the use of CFCs is confined.

TECHNOLOGY FIELD

The present invention relates to a kind of air conditioning apparatus,particularly to a kind of low pressure difference heat pump airconditioner with air energy as refrigerating heating circulating power.

TECHNOLOGY BACKGROUND

The differential cold-valley pipe (herein after called J-pipe for short)is a kind of high efficiency heat exchange device featuring a large heatflow rate per unit area and enabling the end temperature difference forheat transmission to approach zero indefinitely. The Chinese patentapplication No. 941,121, 107.0 has put forward an “air energy 8-formcirculation air conditioner” which is an all fresh air conditionercomposed of an air energy heat pump J-pipe, a super condensation J-pipe,a low pressure difference energy transformation heat pump M, has ratherhigh thermodynamic cycle efficiency and requires 100% outdoor fresh airfor both cool (heat) output in its air conditioning just for achievingthe optimal thermodynamic cycle efficiency. However, the above-mentionedtechnical scheme is mainly pointing to the theoretical research of8-form circulation and in need of further improvement with respect toheat exchange and thermodynamic cycle efficiency of J-pipe. There stillexist quite a few problems in its cooling-weight ratio, volumetricratio, industrialization of manufacturing process and reducing productcost, hence it is difficult to achieve a fundamental result in solvingthe three major difficult problems (high energy consumption , low airquality, limited use of CFCs (chloroflucrocarbons).

SUMMARY OF THE PRESENT INVENTION

In order to solve the above-mentioned problems, the present inventionputs forward a kind of high efficiency J-pipe air conditioner, in saidair conditioner is provided an arc J1′ heat exchange device which isformed by stacking alternately multiple-layer arc J1 strips andmultiple-layer corrugated step corrugations and being tightly clamped upinto frames composed of arc rib-shaped clamping plates and tie rods, atthe contact places of clamping plates and step corrugations there arebuffer cushions, ducts F′ formed by step corrugations have a flowdirection of S shape, and on their wall surface are cut out several longand strip-shaped heat insulating ports, each J1 strip has innercorrugated plates inserted into its flat tubes, outside the flat tubesis wrapped thin aluminum sheet, at the outlet and inlet of the workingsubstance are connected respectively the incoming liquid branch tube andsuction vapor branch tube; in the high efficiency J pipe air conditioneris also provided an arc J2′ heat exchange device which is formed bystacking alternately multiple-layer arc J2 strips and multiple-layercorrugated membrane corrugations and being tightly clamped up in framescomposed of arc rib-shaped clamping plates and tie rods, at the contactplaces of said clamping plates and membrane corrugations there arebuffer cushions, ducts F formed by membrane corrugations have a flowdirection of S shape and on their wall surface are cut out several longand strip-shaped heat insulating ports, supporting frames of membranecorrugations are constituted from step corrugations made of thinaluminum or other metallic sheet or fine metallic wire mesh by adheringstep membranes on their both surfaces thus to form the membranecorrugations, each J2 strip constitutes by inserting inner corrugatedplates into its flat tubes has a complete t1′˜t2′ non-isothermal workingsubstance flow passage, at the outlet and inlet of the working substanceare connected respectively incoming vapor branch tube and outgoingliquid branch tube, outside the flat tubes is wrapped aluminum sheet orcorrosion resistant metallic sheet, the flat tubes can be made directlyform corrosion resistant metal with membrane type evaporating surfaceadhered further on the outside, between the parallel arranged flat tubesand membrane type evaporating surfaces are inserted water-carryingyarns; a low pressure pump M is provided between the J1′ heat exchangerdevice and J2′ heat exchanger device, the low pressure pump M will workat a rather low condensing pressure P2 of J2′ and a rather highevaporating pressure P1 of J1′ and can jointly convey liquid and vapor;the maximum refrigerating capacity can be obtained when the circulatingworking substance is a single or mixed (azeotropy or non-azeotropy)refrigerant, the -form circulation and all fresh air 8-form circulationof the highest circulation efficiency can be obtained when thecirculating working substance is a working substance pair composed ofabsorbent and refrigerant.

The present invention aims at creating a kind of series J pipe airconditioners with rather high practical value and rather highthermodynamic cycle efficiency, and striving to solve the three majordifficult problems confronting the current air conditioning industry ashigh energy consumption, low air quality, limited use ofChloroflucrocarbons (CFCs).

The present invention, first of all, is striving for the raise of heatexchange efficiency and thermodynamic cycle efficiency and fullutilization of air energy. The high efficiency J pipe means that heatexchanger of rather small volume can achieve large heat exchangecapacity and rather low heat transmission temperature difference. Due tohigh efficiency characteristics of J pipe, the key technical indices ofthe present invention on cooling-weight ratio, volumetric ratio (volumeoccupied by unit refrigerating capacity air conditioning), manufacturingcost, etc. are superior to current air conditioners by merging the fullutilization of air energy and non-isothermal, low temperature differenceheat transfer characteristics of high efficiency J pipe organically intoone integral can run at a COP (refrigerating capacity/net output powerof low pressure pump) value above 25 during -form circulation, and rn ata COP value above 30 during all fresh air 8-from circulation.

BRIEF EXPLANATION OF ACCOMPANYING DRAWINGS

FIG. 1 is a schematic diagram of the cycle principle of the highefficiency J pipe air conditioner of the present invention.

FIG. 2 is a front view of the J2 pipe.

FIG. 3 is a top view of FIG. 2

FIG. 4 is an enlarged left sectional view of FIG. 2.

FIG. 5 is a sectional view of the slender round tube J2 strips in FIG.2.

FIG. 6 is a partial enlarged view of designation 5 in FIG. 2.

FIG. 7 is a sectional view of steps of the arc J2′ pipe.

FIG. 8 is a front view of J1 pipe.

FIG. 9 is a top view of FIG. 8.

FIG. 10 is an enlarged left sectional view of FIG. 8.

FIG. 11 is a structural schematic diagram of J1 J2-form extensionmachine.

FIG. 12 is a structural schematic diagram of J1 J2-form window machine.

FIG. 13 is a structural schematic diagram of J1′ J2′ -form windowmachine.

FIG. 14 is a structural schematic diagram of J1′ J2′ 8-form windowmachine.

FIG. 15 is a structural schematic diagram of J2′ J2-form heat pump typewindow machine.

FIG. 16 is a structural schematic diagram of J2′ J2′ 8-form heat pumptype window machine.

THE PREFERRED EMBODIMENT MODE OF THE PRESENT INVENTION

FIG. 1 is a schematic diagram of circulation principle of the presentinvention.

J1 is J1 pipe, J2 is J2 pipe, M is low pressure pump, m is capillarytube. The low pressure pump is connected between the incoming vapor tubeof J2 pipe and suction vapor tube of J1 pipe, the heat pump type isconnected in between a four-way conversion valve; the capillary tube mis connected between the liquid supplying tube of J2 pipe and anincoming liquid tube of J1 pipe.

Due to a rather high heat exchange efficiency of J pipe, the J1 pipe andJ2 pipe by adopting (2-5) temperature zones of separation will realize0.1˜0.5° C. heat transfer temperature difference.

The working pressure of J1 pipe is P1, the working pressure of J2 pipeis P2.

Outdoor air a3 through J1 pipe being cooled from tn-t1 to a2 state isconveyed indoor, a2≈t1, a3≈tn.

Indoor air a1 through J2 pipe from t1′˜tn′ absorbing heat, afterabsorbing moisture at a4 state is discharged outdoor, t1′ approaches wetbulb temperature of a1.

The liquid state dilute solution x2 composed of absorbent andcorresponding refrigerant through J2 pipe after being cooled to t1′temperature through capillary tube m being decompressed to P1, in J1pipe is heated by air gradually from t1˜tn to a temperature approachinga3 dry bulb temperature of a mixture x3 of superheated refrigerant vaporand absorbent concentrated solution, x3 through the low pressure pump Mis pressurized to x1 state of P2 to enter J2 and from tn′˜t1′ isgradually cooled to dilute solution of x2. The concentrated absorbentsolution being cooled to tn′˜t1′ with its surface differential pressurebeing rather low has a strong ability to absorb vapor state refrigerant,hence the equilibrium condensing pressure P2 of J2 pipe is rather low.

The window machine and outdoor machine of split-body machine of highefficiency J pipe air conditioners are provided with a bottom tray, inthe bottom tray is stored water solution or other cool-carrying agentsolution at a certain level. The condensed water of J1 through drippingtube flows to the bottom tray and is sprayed to moisten ventilationducts F of J2 by water circulating system through timing and metering, Fducts have water carrying and water absorbing capacity and can form alarge superficial evaporating water film when it is in wetting state andits inner hydrous layer has very good thermal conductivity. So J2radiates heat in continuously completed wet state. Hence t1′ canindefinitely approach wet bulb temperature of a1, and as the t1′˜tn′temperature rise being is rather small, the above-mentioned circulationis an 8-form circulation.

When the cooled air passing through J1 pipe is indoor air a1 and thecooling air passing through J2 is outdoor air a3, x3 can only be heatedto dry bulb temperature of a1 (a1<a3), the lowest temperature t1′ ofJ2-pipe can also only be cooled to wet bulb temperature of a3, and thewet bulb temperature of a3 is higher than wet bulb temperature of a1.Due to changes of air state via J1 pipe and J2 pipe, the 8-formcirculation will evolve to -form circulation.

As compared with current air conditioners, the J1 pipe in 8-form and-form circulation corresponds to evaporator, and generator, J2 pipecorresponds to condenser and absorber. The distinction lies in that theevaporating pressure P1 of J1 is higher than the current airconditioners, while the condensing temperature and pressure P2 are farlower than the current air conditioners; hence the low pressure pump Mas compared with compressors of equal flow volume requires a net powerless than ⅓, while with a refrigerating capacity being able to increaseover 1 time.

Referring to accompanying FIGS. 2,3,4,5,6, FIG. 2 is a front view of J2pipe, FIG. 3 is a top view of J2 pipe, FIG. 4 is an enlarged leftsectional view of J2 pipe, FIG. 5 is sectional view of slender roundtubes of J2 strips, FIG. 6 is a partial enlarged view of designation 5in FIG. 2.

J2 strips 1, membrane-type, step-shaped corrugated plates (membranecorrugations) 2, clamping plates 3, tie rods 4, curved conduits 6, pads7, incoming vapor branch tubes 8, parallels connecting tubes 9, incomingvapor tubes 9, incoming vapor tubes 10, outgoing liquid branch tubes 11,parallel connecting tubes 12, liquid supplying tubes 13, flat tubes 14,inner corrugated plates 15, membrane type evaporating surfaces 16, heatinsulating ports 17, buffer cushions 18, heat insulating strips 19,water-carrying yarns 20, step-shaped corrugated plates (stepcorrugations) 21, and step-shaped membrane type evaporating surfaces(step membranes) 22.

The heat exchange system of J2 pipe is formed by stacking alternatelymultiple-layer J2 strips 1 and multiple-layer membrane corrugations 2and being tightly clamed up into frames composed of rib-shaped clampingplates 3 and tie rods 4. Ducts F of cooling air a1˜a4 is constitutedfrom membrane corrugation 2 and J2 strips 1, both ends of each membranecorrugation 2 have each a slender rectangled strip-shaped pad 7, at thecontact places of clamping plates 3 and membrane corrugations 2 thereare adhered buffer cushions 18; each J2 strip 1 constitutes in its flattube (14) a complete from tn′˜t1′ non-isothermal working substancepassage, at the inlet of working substance there is the incoming vaporbranch tube 8 connected in parallel to the parallel connecting tube 9(or distributor) of the incoming vapor tube 10, at the outlet of workingsubstance there is the outgoing liquid branch tube 11 connected inparallel to the parallel connecting tube 12 (or distributor) of theliquid supplying tube.

See FIGS. 3,4. Two flat tubes 14 arranged in parallel spacing in J2strips 1 are inserted with inner corrugated plates 15 made of thinaluminum sheet for enlarging heat dissipating area of working substancefluid, at the turns of flow of working substance are provided curvedconduits 16, at the outlet and inlet of working substance are connectedrespectively the outgoing liquid branch tube 11 and incoming vaporbranch tube 8, outside flat tubes is wrapped membrane type evaporatingsurfaces 16, between flat tubes 14 and membrane evaporating surfaces 16are inserted 2 water-carrying yarns 20, the water-carrying yarn 20 isdivided into 2 temperature zone by a heat insulating strip 19 made ofheat insulating material, hence each flat tube 14 constitutes anisothermal heat exchange zone, the flat tube can be made of thinmetallic tube about Φ6 mm pressed into narrow and thin flat tube.

FIG. 5 is sectional view of slender round tubes of J2 strips. Theworking substance flow passages are slender round tubes 14′ into whichare inserted inner corrugated plates 15, each slender round tube 14′constitutes an isothermal heat exchange zone with heat insulating strip19 as boundary, the advantages of J2 strips composed of slender roundtubes 14′ lies in more divided temperature zones available and reducethe pressure of membrane corrugations 2 and clamping plates 3. Flattubes 14 and slender round tubes 14′ can be made of choice corrosionresistant metal of high heat conductivity, in case of using copper oraluminum material, surface corrosion-resisting treatment ought to beconducted to raise durability.

See FIGS. 5,6, the membrane corrugations (2) with corrugated fins aremade of thin metallic sheet or ribbon of metallic wire mesh withnon-woven fabric adhered to both surfaces, after being formed the towsurfaces of the middle step corrugation 21 are adhered with stepmembranes 22 to compose the membrane corrugation 2, on the vertical wallface of membrane corrugations 2 at the upper side of heat insulatingstrip 19 are cut out long and strip-shaped heat insulating ports 17 fordividing into heat exchange temperature zones and cooling air can hereinform turbulence to strengthen heat exchange. The step corrugations 21 assupporting frames can be made of extra thin corrosion resistant metallic(stainless steel or stainless iron) sheet or fine metallic wire mesh.The membrane type evaporating surfaces 16, step membrane 22,water-carrying yarns 20 are made of corrosion resistant non-woven fabric(adhesive-bonded fabric) of very strong water-carrying and waterabsorbing ability, during moistened state, the membrane type evaporatingsurfaces 16, step membranes 22, water-carrying yarns 20 are saturatedwith water, the step-shaped ducts F constituted from step membranes 22and membrane evaporating surfaces 16 have large water evaporatingsurface area, the water containing layers also have excellent heatconducting property; the water content stored in water-carrying yarns 20can make F surfaces under a continuously moistened state to extend theinterval of water spraying time as long as possible, and on the otherhand to strengthen the heat conductivity between J2 strips 1 andmembrane corrugations 2. Since ducts F are working under a continuouslyall-wetted state, hence x2 can be cooled to wet bulb temperature of a1.The step-shaped ducts F can be designed in their lateral or longitudinalflow directions to an S shape to further enhance heat exchangeperformance.

The mixture x1 of superheated refrigerant vapor and absorbentconcentrated solution compressed to P2 by the low pressure pump M entersfrom incoming vapor tubes 10 through parallel connecting tubes (ordistributors) 9 into various incoming vapor branch tubes 8, the dilutesolution x2 which is cooled gradually and non-isothermally from tn′˜t1′to wet bulb temperature of a1 in the flat tubes 14 (or slender roundtubes 14′) of J2 strips 1 converges from the outgoing liquid branchtubes into the parallel connecting tubes (or distributors) 12 and flowsthrough the liquid supplying tubes 13 to the J1 pipe.

FIG. 7 is a sectional view of steps of the arc J2′ pipe. In the figurethere are 3 flat tubes 14 in the J2 strips 1 arranged along concentricarc direction in parallel spacing, ducts F of membrane corrugations 2show a sector-shaped arrangement, the rest structures are identical withJ2 pipe. The J2′ pipe can further enlarge heat dissipating area, lowerventilation resistance, cooling-weight ratio and volumetric ratio.

J2 and J2′ are a kind of all-wetted heat exchanger of very high heatexchange efficiency to have a wide application scope, and are generallyused as condenser in J pipe air conditioners, however, can also be usedas evaporator.

Referring to FIGS. 8,9,10, FIG. 8 is a front view of J1 pipe, FIG. 9 isa top view of J1 pipe, FIG. 10 is an enlarged left sectional view of J1pipe.

Clamping plates 3, tie rods 4, curved conduits 6, pads 7, flat tubes 14,inner corrugated plates 15, J1 strips 30, step-shaped corrugated plates(step corrugations) 31, ducts F′, incoming liquid branch tubes 23,distributors 24, capillary tubes 25, split-flow heads 34, liquidsupplying tubes 13, vapor suction branch tubes 27, parallel connectingtubes 28, vapor suction tube 29, heat insulating chambers 32,water-leaking yarns 33, heat insulating ports 17.

The heat exchange system of J1 pipe is formed by stacking alternatelymultiple-layer J1 strips 30 and multiple-layer step corrugations 31 andbeing tightly clamped up into frames composed of rib-shaped clampingplates 3 and tie rods 4. Ducts F′ of cooled air a3→a1 are constitutedform step corrugations 31 and J1 strips 30, both ends of each stepcorrugation 31 have a slender rectangled strip-shaped pad 7, at thecontact places of clamping plates 3 and step corrugations 31 there areadhered buffer cushions 18; each J1 strips 30 in flat tubes 14constitutes a complete from t1˜tn non-isothermal working substance flowpassage, at the outlet of working substance is connected an incomingliquid branch tube 23, the incoming liquid branch tube 23 is connectedin parallel to a distributor 24 of the capillary tube 25, at the outletof working substance is connected a vapor suction branch tube 27, thevapor suction branch tube 27 is connected in parallel to the parallelconnecting tube (for distributor) 28 of vapor suction tube 29.

The step corrugations 31 with corrugated fins are made of thin aluminumsheet, the spacing and height of their step-shaped ducts F′ are designedaccording to heat dissipating characteristics of air and heat transfertemperature difference requirement for refrigeration, their step-shapedslope is rather small to approximate a rectangle, ducts F′ can bedesigned in their lateral or longitudinal flow direction to an S shapeto further enhance heat exchange performance, at the upper side of heatinsulating chambers 32 on the vertical wall surfaces of the stepcorrugations 31 are cut out long and strip-shaped heat insulating ports17 used to divide heat conducting temperature zones and to enhance heatexchange.

In FIGS. 9, 10, each J1 strip 30 has 3 flat tubes 14 arranged inparallel spacing and in the flat tubes 14 are inserted inner corrugatedplates 15 for enlarging working substance heat absorbing area, at theturns of flow of working substance, there are curved conduits 6, outsidethe flat tubes 14 is wrapped thin aluminum sheet to make F′ ascontinuous uniform flow passages, hence J1 strips 30 and stepcorrugations 31 are the same aluminum sheet at their joining places asthe same metal being less easy to cause electrochemical corrosion. Theenclosed air chambers formed between the thin aluminum sheets and flattubes 14 are heat insulating chambers 32 being used to divide heatconducting temperature zones so as to make each flat tube 14 constitutean isothermal heat exchange zone. The flat tubes 14 adopt less width andrather thin tube wall, less width can decrease the loading of stepcorrugations 31 and clamping plates 3, rather thin tube wall can enhanceexpansion action to make J1 strips 30 and step corrugations 31 nestledtightly against each other to enhance heat exchange.

The liquid state dilute solution x2 composed of absorbent andrefrigerant enters from the liquid supplying tube 13 into the split-flowhead 34 to flow in split streams to various capillary tubes 25, fromcapillary tubes to enter into distributors 24 of various sets and topass through various incoming liquid branch tubes 23 to enter theworking substance flow passage of J1. x2 in flat tubes 14 is heated byoutdoor air a3 gradually to superheated refrigerant vapor of dry bulbtemperature of a3 and the liquid vapor mixture x3 of superheatedconcentrated absorbent solution, and converges from the vapor suctionbranch tube 27 into parallel connecting tube 28 (or distributor) throughvapor suction tube 29 to be pumped away by the low pressure pump M,simultaneously outdoor air a3 is lowered in temperature and in moisturein ducts F′ to a1 state to be inputted indoor, the temperature of a1approaches the evaporating temperature of refrigerant in J1 strips 30.The strip-shaped water-leaking yarns 33 at the left side of J1 strips 30make F′ ducts of J1 pipe on air exit surface form a mutually linked upwater flowing surface, so as being able to quickly eliminate thecondense water on surface of the step corrugations 31. The thin aluminumsheet selected for making step corrugations 31 and wrapping J1 strips 30ought to be hydrophilic aluminum sheet.

Same as J2 pipes, the J1 pipe can similarly be made into arc J1′ pipe,the J1 pipe is generally used as evaporator in J pipe air conditioners,however, it can also be used as condenser to make into J1J1 type J pipeair conditioners. J1 pipe is a kind of heat exchanger of rather highheat exchange efficiency apparently with extensive application value.

FIG. 11 is a structural schematic diagram of J1J2-form split-bodymachine. J1 means J1 pipe is used as evaporator, J2 means J2 pipe isused as condenser, split-body machine means split-body type airconditioner, -form means -form circulation.

The indoor machine is composed of a J1 (or J1′) pipe, a fan 37, etc.Indoor air a1 under suction action of the fan 37 mounted in front of J1pipe is from the rear of J1 pipe through a filter screen 36, after beingcooled to a2 in J1 pipe through guide of an adjustable damper 35 andthen is conveyed indoor, the temperature of a2 can be defined by thepressure state of P1. The condense water is led to the bottom tray ofthe outdoor machine through a dripping tube 41 connected to an adapter38, the liquid supplying tube 13 for working substance is connected toan adapter 39, the vapor suction tube 29 for working substance isconnected to an adapter 40. Due to a rather low ventilating resistanceof J1 pipe (or J1′ pipe), hence an axial flow fan may be used.

The outdoor machine is composed of a J2 (or J2′) pipe, fan 26, lowpressure pump M, bottom tray, water level controller, water circulatingsystem, etc. Outdoor air a3 under suction of the fan 26 at the rightside of J2 pipe from left side through a water baffle 50 to absorb heatand moisture in the ducts F of J2 to a4 state is discharged to outdooratmosphere. The water level in bottom tray is controlled by a watersupply tube of the water level controller. The water circulating systemis composed of a water pump 47, filter 48, nozzles 49 and connectingtubing to a automatically control the system at intervals and in timing,metering to moisten the air facing surface of J2. The low pressure pumpM is mounted in the bottom tray, water baffle 50 is mounted at air inletto prevent water mist from splashing out.

The working substance connecting tubing of the J1J2-form split-bodymachine is the same as split-body air conditioners for sale on market,the liquid supplying tube 13 is connected to a connector valve 45 of theoutdoor machine, the vapor suction tube 29 is connected to a connectorvalve 44 of the outdoor machine. The dripping tube 41 is connected to anadapter 46 of the outdoor machine to lead condensed water to bottomtray.

The J1J2-form split-body machine has rather high thermodynamic cycleefficiency, its outdoor unit made of J2 pipe can also be equipped withthe indoor unit of the current air conditioner, however, with a somewhatlowered efficiency.

FIG. 12 is a structural schematic diagram of a J1J2-form window machine.J1 means the evaporator uses J1 pipe, J2 means the condenser uses J2pipe, -form window machine means a window type air conditioner of -formcirculation. Its ventilation structure is the same as window machinesfor sale on market, a centrifugal fan 55 will suck air at the rear sideof J1, indoor air a1 is from one side of the face plate through a filterscreen 36 to be cooled in ducts F′ of J1 to a2, then through a volutepassage to pass the guide of a guiding air damper 35 at the other sideof face plate and is conveyed indoor. Outdoor air a3 from both sidesoutside the wall through a water baffle to absorb heat and moisture inducts F of J2 to a4 state is sucked by fan 26 to outdoor atmosphere. Thewater level in bottom tray is controlled by a water level controllercomposed of a float 54, an on-off port 53, a support 52, and a watersupply slender tube 51. The water circulating system is composed of awater pump 47, a filter 48, etc. to spray and moisten the air facingsurface of J2 at intervals in timing and metering (generally to sprayabout 15 seconds every 20 minutes). The low pressure pump is mounted inthe bottom tray, the water baffle is mounted at both sides of air inletoutside the wall.

FIG. 13 is a structural schematic diagram of a J1′J2′ -form windowmachine. A fan 37 in front of indoor side is mounted in the concave arcof J1′, under its suction indoor air a1 from air inlets 58 on bothindoor sides through a filter screen 36 from the concave arc face of J1′pipe enters ducts F′ to be cooled to a2 then through guide of anadjustable air damper 35 and is conveyed indoor. A fan 26 at the rearend on the outdoor side is mounted in the concave arc of J2′, under itssuction outdoor air a3 from a water baffle 50 on both sides of outsidewall 56 through the convex arc face of J2′ pipe enters ducts F to absorbheat and moisture to a4 state and is discharged to outdoor atmosphere.

A protecting screen 59 at the outdoor rear end face is use to protectthe fan 26, an arc partition 57 in the middle is use to insulate heatand separate ducts, the mounting of water circulating and level controlsystems and low pressure pump M in bottom tray is not repeated.

FIG. 14 is a structural schematic diagram of J2′J2′ 8-form windowmachine.

An indoor front fan 37 and an outdoor rear fan 26 are mountedrespectively in the concave arc of J1′ pipe and J2′ pipe, and undertheir suction actions:

outdoor air a3 from an oblique window 60 on top of outside wall 56through a filter screen 36 from the convex arc face of J1 pipe entersducts F′ to be cooled to a2 then through the guide of an adjustabledamper 35 and is conveyed indoor, the temperature of a2 can be set by P1state.

Indoor air a1 from air inlets at both sides indoor through the convexarc face of J2′ pipe enters ducts F to absorb heat and moisture to a4and is discharged to outdoor atmosphere.

In the bottom tray there are a water level controller and a watercirculating systems and a low pressure pump.

In the bottom tray of the above-mentioned J1, (J1′), J2, (J2′) -form and8-form window machines or outdoor machines, there are all watercirculating and water level control systems, under air state of ordinaryhumidity the consumption of water is very little, in case of waterdeficit state a proper amount of cool-carrying agent not readilyvolatile to air as glycerin or glycol water solution may be filled inthe bottom tray to constitute a self-sufficient water equilibriumcirculating system.

FIG. 15 is structural schematic diagram of a J2′J2′ -form heat pump typewindow machine. The condenser and evaporator all use J2′ pipe for readychange-over during heat generating. During refrigerating, the fans, Jpipes, and ventilating structure are identical with J1′J2′ -form windowmachine of FIG. 13. Air inlet 58 on indoor both sides can be remade intoadjustable air windows 58′ to be used as water baffles duringrefrigerating and as adjustable air windows during heat generating, thewater solution in the bottom tray is separated into indoor bottom trayand outdoor bottom tray by a partition 57, each J2′ pipe is allocated aset of water circulating system compose of water pump, filter, nozzlesand connecting tubing. In the bottom tray may be filled any one kind ofwater solutions of cool-carrying agent as glycerin, glycol, lithiumchloride, lithium bromide not readily volatile to air to constitute anoutside circulating working substance of J2′ pipe and water equilibrium.

During refrigerating, the water pump 47 sprays the dilute water solutionin the indoor bottom tray at intervals and in timing, metering tooutdoor J2′ pipe, simultaneously the water pump 47′ sprays theconcentrate water solution in the outdoor bottom tray at intervals andin timing, metering to indoor J2′ pipe, to constitute a waterequilibrium system of supplying water or supplying no water.

During generating heat, the reversing valve transforms the indoor J2′pipe into a condenser, the indoor and out door fans 37, 26 will rotatein the reverse direction. Indoor air a1 through the adjustable damper 35from the concave arc face of indoor J2′ enters ducts for increasing heatand moisture to a4 and is led indoor from the adjustable air window 58′;outdoor air a3 through protecting screen 59 from the concave arc face ofoutdoor J2′ passes ducts for reducing temperature and moisture to a2 andis discharged to atmosphere from water baffles 50 at both sides ofoutside wall. With the same reason, the water pump 47 sprays theconcentrated water solution in the indoor bottom tray at intervals andin timing, metering to the convex arc face of outdoor J2′ pipe toprevent ducts from frosting, simultaneously the water pump 47 alsosprays the dilute water solution in the outdoor bottom tray to theconvex arc face of indoor J2′ to adjust the humidity of a4, so as toconstitute an equilibrium system of supplying water or supplying nowater and to adjust the required humidity.

When the cool-carrying agent water solution in bottom tray is a saltcategory of lithium chloride or lithium bromide, the material for makingflats tubes 14 or slender round tubes 14′ of J2 strips ought to becorrosion resistant stainless steel. During refrigerating, the bottomtray may also use water alone as an outside circulating workingsubstance.

The J2′J2′ -form heat pump type window machine of the above-mentionedFIG. 15 can be decompose along the partition 57 into indoor and outdoorside two portions, hence it is possible by the same reason to make up aJ2′J2′ -form heat pump type split-body machine.

FIG. 16 is a structural schematic diagram of a J2′J2′ 8-form heat pumptype window machine. The condenser and evaporator all use J2′ pipe forready conversion of refrigerating and heat generating, duringrefrigerating the ventilating structure is the same as J1′J2′ 8-formwindow machine of FIG. 14. The bottom tray is divided by a partition 61into indoor bottom tray and outdoor bottom tray two portions, the indoorand outdoor J2′ have each a set of water circulating system, in thebottom tray is filled in a cool-carrying agent water solution notreadily volatile to air to constitute an outside circulating workingsubstance of supplying water or supplying no water.

During refrigerating, the water pump 47 sprays the dilute water solutionin the indoor side bottom tray at intervals and in timing, metering tooutdoor J2′ pipe, the water pump 47′ sprays the concentrated watersolution in the outdoor side bottom tray at intervals and in timing,metering to indoor J2′ pipe to constitute an outside working substancecirculation. During spraying mist, indoor and outdoor fans 37 and 26ought to stop rotation.

During generating heat, the reversing vale transforms the indoor J2′pipe into a condenser and transform the outdoor J2′ pipe into anevaporator. Indoor air a1 from adjustable air windows 58′ on indoor bothsides through outdoor J2′ pipe to be cooled to a2 is discharged tooutdoor atmosphere, outdoor air a3 from oblique windows on top ofoutside wall 56 through indoor J2′ to absorb heat and moisture to a4passes the guide of an adjustable damper 35 and is conveyed indoor. Itsoutside circulating working substance and water circulating system areidentical with J2′J2′ -form heat pump type window machine.

The above-mentioned -form circulating and all-fresh air 8-formcirculating J pipe air conditioners adopt therein circulating workingsubstance pair composed of absorbent and its corresponding refrigerant,its object is to store the heat energy released from refrigerated airduring cooling procedure in the absorbent solution to the maximum degree(transformed into chemically absorbed energy), or in other words theabsorbent solution will be, to the maximum degree, heated andconcentrated by refrigerated air from t1˜tn to lower the condensingpressure as far as possible, and to make the low pressure pump M run atthe lowest obtainable P2−P1=ΔP pressure difference. In the same J pipeair conditioner, it is also possible to use a single or mixed (azeotropyor non-azeotropy) refrigerant (not working substance pair) ascirculating working substance, at this moment the J pipe unit can obtainthe maximum refrigerating capacity, however, right now the running of Jpipe air conditioner is in Carnot or Lorentz cycle.

The preferred outside circulating working substance of J1 (J1′) J2 (J2′)8-form or -form J pipe air conditioners is water, its action is to themaximum degree able to lower the condensing pressure P2 and temperatureof J2 pipe, the object to add cool-carrying agent (glycerin, glycol)water solution in the bottom tray of their window machines or outdoormachines is to compensate for inadequacy of condensation of J2 pipeduring water deficient state (water supplying slender tube unable tosupply water continuously).

For any J2(J2′)J2(J2′) 8-form or -form J pipe air conditioner composedof 2 J2 pipes being used simultaneously, each J2 pipe is allocated a setof water circulating system. When the outside circulating workingsubstance in the bottom tray is a category of lithium chloride, lithiumbromide, calcium chloride aqueous absorption salts water solution, theconcentrated salt water solution is sprayed to the air exit surface ofJ2 pipe (evaporating J2 pipe) used as evaporator to make it uniformlydistributed over the surfaces of membrane type evaporating surface 16and membrane corrugation 2 surface of ducts F, the cooled air in ducts Fhas strong moisture and heat dissipating action to very much strengthenthe heat exchange action of J2 pipe, the circulating working substancein J2 strips can also obtain heat from cooled air to the maximum degree,on the other hand it is also possible to raise the defined evaporatingtemperature and pressure P1 and during heat generating running toprevent ducts F from surface frosting and facilitate to extract heat andhumidity from air being cooled. The concentrated salt water solutionabsorbs water and releases heat from ducts surfaces and is graduallytransformed into dilute salt water solution to flow into bottom trayfrom air facing surface, the water circulating system provided to thecondenser J2 pipe (condensing J2 pipe) periodically extracts it away andsprays toward the air facing surface of cooling air (air to be generatedout of heat during heat generating) of condensing J2 pipe, then themoisture is released and heat is absorbed on ducts F surfaces andgradually transforms into concentrated salt water solution to flow fromair exit surface and converges to bottom tray, the water circulatingsystem provided to the evaporating J2 pipe extracts . . . and spraystoward air exit surface of evaporating J2 pipe. The action of the two J2pipes transforms with each other during refrigerating and heatgenerating. The above-mentioned circulation is called the outside 8-formcirculation from raising evaporating pressure P1 to raise thermodynamiccycle efficiency, and during generating heat it is possible to raise thetemperature and humidity of air to be heated to prevent ducts F surfacesof evaporating of J2 pipe from frosting.

When glycerin or glycol such kind of water solution is used as outsidecirculating working substance, the main object lies in preventingevaporating J2 pipe ducts F surfaces from frosting and raising thetemperature and humidity of output warm air of condensing J2 pipe, so asto raise the air conditioning comfort degree during generating heat andto prevent water deficiency by water supplying slender tube duringrefrigerating.

What is claimed is:
 1. A kind of air conditioner with high-efficiencydifferential cold-valley pipes comprises differential cold-valley pipesJ1 and J2 and a low pressure pump M, characterized in that: A. In theheat exchanger J1 pipe: Multiple-layer J1 strips and multiple-layercorrugated fin step corrugations (31) are stacked alternately andtightly clamped up into frames composed of rib-shaped clamping plates(3) and tie rods (4), at the contact places of said clamping plates (3)and step corrugations (31) there are buffer cushions (18), the stepducts F′ in vertical parallel arrangement to approximate a rectangleformed by step corrugations (31) and said J1 strips (30) are in a flowdirection of S shape, on each vertical wall surface of said stepcorrugations are cut out several long and strip-shaped heat insulatingports (17), at both ends of each step corrugation (31) is a rectangledpad (7), the step corrugations (31) are made of thin aluminum sheet orhydrophilic aluminum sheet, each J1 strip (30) has a t1 workingsubstance evaporating temperature˜tn working substance return vaportemperature continuously temperature changing working substance flowpassage formed by inserting inner corrugated plates (15) made of thinaluminum sheet into 2-5 metallic copper or aluminum flat tubes (14)arranged in parallel spacing and connected in series, at each turn offlow of said working substance flow passage there is a curved conduit(6), the flat tube (14) end at the inlet and outlet of working substanceflow passages are respectively connected with incoming liquid branchtube (23) and suction vapor branch tube (27), the Suction vapor branchtube (27) after being connected in parallel with parallel connectingtube or distributor (28) is connected again with suction vapor tube(29), the incoming liquid branch tube (23) after being connected inparallel with distributor (24) is again connected with the capillarytube (25), the capillary tube (25) is connected with the liquid supplytube (13); B. In the heat exchanger J2 pipe: The Multiple-layer J2strips (1) and multiple-layer corrugated fin step membrane corrugations(2) are stacked alternately and tightly clamped up into frames composedof rib-shaped claming plates (3) and tie rods (4), at the contact placesof said clamping plates (3) and membrane corrugations (2) there arebuffer cushions (18), the step ducts F in vertical and parallelsarrangement to approximate a rectangle formed by membrane corrugations(2) and said J2 strips (1) are in a flow direction of S shape, on eachvertical wall surface of membrane corrugations (2) are cut out severallong and strip-shaped heat insulating ports (17), at both ends of eachmembrane corrugation (2) there is a rectangled pad (7), each J2 striphas a t′n working substance vapor discharging temperature of the lowpressure pump˜t′1 liquid state working substance temperature aftercondensation continuously temperature changing working substance flowpassage formed by inserting inner corrugated plates (15) made of thinaluminum sheet into 2-5 metallic copper or aluminum flat tubes (14)arranged in parallel spacing and connected in series, at each turn offlow of said working substance flow passage there is a curved conduit(6), the flat tube (4) ends at the inlet and outlet of working substanceflow passages are connected respectively with an incoming vapor branchtube (8) and outgoing liquid branch tube (11), the incoming vapor branchtube (8) after being connected in parallel with parallels connectingtube or distributor (9) is connected again with incoming vapor tube(10), the outgoing branch tube after being connected in parallel withthe distributor or parallel connecting tube (12) is again connected witha liquid supplying tube (13), outside the flat tubes (14) arranged inparallel spacing are wrapped membrane type evaporating surfaces (16),between membrane evaporating surfaces (16) and flat tubes (14) areinserted water-carrying yarns (20), the membrane corrugations (2) arecorrugated fins made of thin aluminum sheet or metallic wire meshadhered with non-woven fabric on both surfaces, and with thin aluminumsheet or metallic wire mesh inside to form supporting frame stepcorrugations (21) and with its surfaces to form step membranes (22), thewater-carrying yarns (20), step membranes (22), membrane typeevaporating surfaces (16) are made of corrosion resistant non-wovenfabric adhesive-bonded fabric with extra high water-carrying and waterabsorbing capacity; C. The low pressure pump M is connected between thevapor suction tube (29) leading to J1 pipe and the incoming vapor tube(10) leading to J2-pipe, the heat pump type is connected with a four-wayconversion valve in between, the low pressure pump M will work between arather low condensing pressure P2 and a rather high evaporating pressureP1 and can jointly convey liquid and vapor; the maximumrefrigerating/heat generating capacity can be obtained when thecirculating working substance is a single or mixed azeotropy workingsubstance, the -form circulation and all fresh air 8-form circulationcan be run at the highest circulation efficiency when the circulatingworking substance is a working substance pair composed of refrigerantand absorbent.
 2. Said air conditioner with high-efficiency differentialcold-valley pipes claim 1, characterized in that: When the flat tubes(14) in J1 strips (30) and J2 strips (1) therein are arranged inconcentric arc direction with parallel spacing, the step corrugations(31) among J1 strips (30) and membrane corrugations (2) among J2 strip(1) show a sector-shaped distribution, when the plane and straightrib-shaped clamping plates are deformed to arc rib-shaped clampingplates, the plane and straight J1 pipe and J2 pipe will be deformed thento arc J1′ pipe and J2′ pipe; the flat tubes (14) in J2 strips (1) inthe above-mentioned J2 pipe and J2′ pipe can also be replaced bymetallic slender round tubes (14′).
 3. Said air conditioner withhigh-efficiency differential cold-valley pipes claim 1 characterized inthat: J1 pipe and J1′ pipe used as evaporating J pipe can also be usedas condensing J pipe, J2 pipe and J2′ pipe used as condensing J pipe canalso be used as evaporating J pipe, during refrigerating: When the airbeing cooled by evaporating J pipes is outdoor air a3 and the air tocool the condensing J pipe is indoor air a1, the J pipe air conditioneris running in all-fresh air 8-form circulation, when the air beingcooled by evaporating J pipe is indoor air a1 and the air to coolcondensing J pipe is outdoor air a3, the J pipe air conditioner isrunning in -form circulation, during heat generating: When the air beingheated by condensing J pipe is outdoor air a3 and the air being cooledby evaporating J pipe is indoor air a1, the J pipe air conditioner isrunning in all-fresh air 8-form circulation, when the air being heatedby condensing J pipe is indoor air a1 and the air being cooled byevaporating J pipe is outdoor air a3, the J pipe air conditioner isrunning in -form circulation.
 4. Said air conditioner withhigh-efficiency differential cold-valley pipes claim 1 characterized inthat: When window machines or split-body machines of 8-form or -formcirculation are composed of using J1 pipe or J1′ pipe as evaporating Jpipe and using J2 pipe or J2′ pipe as condensing J pipe, in the bottomtray of their window machines or outdoor units of split-body machines ismounted a water circulating system composed of a water pump (47), filter(48), nozzles (49) and connecting tubing, which sprays by automaticcontrol system according to requirement at intervals, and in timing,metering the water solution in the bottom tray to an air facing surfaceof J2 pipe or J2′ pipe, the water level in bottom tray is controlled bya water level control system composed of a float (54), an on-off adapter(53), a supporter (52), water supplying slender tube (51), etc., thecondensed water of J1 pipe or J1′ pipe can be led to the bottom tray,when the water supplying slender tube can not continuously supply water,glycerin or glycol or other cool-carrying agents not readily volatile toair can be added into the bottom tray to constitute a self-sufficientwater equilibrium system, the outdoor unit of the above-mentionedsplit-body machines can also be matched with the indoor machine ofcurrent air conditioners.
 5. Said air conditioner with high-efficiencydifferential cold-valley pipes claim 1 characterized in that: When thecondensing J pipe and evaporating J pipe all use J2 pipe or J2′ pipe tocompose window machines or split-body machines of 8-form or -formcirculation, each J2 pipe or J2′ pipe has water storing bottom trays andwater circulating system, wherein one bottom tray is provided with awater level control system, when lithium chloride, calcium chloride,lithium bromide water absorbing salt solution is added into the bottomtray: The water pump of evaporating J pipe strays at intervals and intiming, metering concentrated salt solution in the bottom tray ofcondensing J pipe to an air exist surface of evaporating J pipe, duringspraying mist their fans stop rotating, the concentrated salt watersolution on surface of ducts F gradually absorbs moisture and releasesheat to transform into dilute salt water and to flow to bottom tray froman air facing surface, simultaneously the water pump of condensing Jpipe also sprays the dilute salt solution in the bottom of evaporating Jpipe at intervals and in timing, metering to the air facing surface ofcondensing J pipe, during spraying mist, their fans stop rotating, thedilute salt water solution on its surface of ducts F gradually releasesmoisture and absorbs heat to transform into concentrated salt watersolution and to converge into bottom tray from the air exist surface,during heat generating, actions of condensing J pipe and evaporating Jpipe change with each other, the circulation constituted by theabove-mentioned outside circulating working substance salt watersolution is an outside 8-from circulation, the outside circulatingworking substance can also be water solution of glycerin, glycol andother cool-carrying agents not readily volatile to air duringrefrigerating the outside circulating working substance can use wateralone.
 6. Said air conditioner with high-efficiency differentialcold-valley pipes claim 1 characterized in that: Air inlets of outdoorair a3 of outdoor machine of -form split-body machines using J1 pipe orJ1′ pipe as evaporating J pipe and J2 pipe or J2′ pipe as condensing Jpipe are provided with water baffles (50); an indoor fan (37) and anoutdoor fan (26) at the front and rear two end faces of a -form windowmachine using J1′ pipe as evaporating J pipe and J2′ pipe as condensingJ pipe are mounted respectively in the concave arc of J1′ pipe and J2′pipe, air inlets (58) of indoor air a1 is provided at two sides insidethe wall (56), air lets of outdoor air a3 is provided at two sidesoutside the wall (56), at the air inlets there are water baffles (50),an indoor fan (31) and an outdoor fan (26) at the front and rear two endfaces of an 8-form window machine using J1 ′ pipe as evaporating J pipeand J2′ pipe as condensing J pipe are mounted respectively in theconcave arc of J1′ pipe and J2′ pipe air outlet (58) of indoor air a1 isprovided at two sides inside the wall (56), outdoor air a3 from a topoblique window (60) outside the wall enters the convex arc face of J1′pipe to be cooled to a2 ducts F′ and is conveyed indoors.
 7. Said airconditioner with high-efficiency differential cold-valley pipes claim 1,characterized in that: the indoor fan (37) and outdoor fan (26) at thefront and rear two end faces are mounted respectively in the concave arcof indoor J2′ pipe and outdoor J2′ pipe, the ventilating ports of indoorair of its -form machine are provided at two sides inside the wall (56),at the ventilating ports are provided adjustable air windows (58′),ventilating ports of outdoor air a3 are provided at two sides outsidethe wall (56), at the ventilating ports are provided water baffles (50),the air outlets of indoor air a1 of its 8-form machine are provided attwo sides inside the wall (56), at the air outlets are providedadjustable air windows (58′), outdoor air a3 from a top oblique window(60) outside the wall (56) enters J2′ convex arc face to be cooled orgenerated of heat in ducts F and then is conveyed indoors.